The MM-BHC-040180-180 from Mountain Microwave Technology is a 180 Degree Hybrid Coupler with Frequency 4 to 18 GHz, Average Power 50 W, Coupling 3 dB, Amplitude Balance ±1.0 dB, Phase Balance ±12 Degrees. Tags: Module with Connector. More details for MM-BHC-040180-180 can be seen below.